Home / 78,384,749.97-108,177,847.52-43,108,771.33

Finding the Fourth Proportional to 78,384,749.97, 108,177,847.52 and 43,108,771.33

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Solution

The fourth proportional to 78,384,749.97, 108,177,847.52 and 43,108,771.33 is: 59,493,895.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,749.97 : 108,177,847.52 = 43,108,771.33 : x
  2. Step 2: Convert to fraction form
    78,384,749.97/108,177,847.52 = 43,108,771.33/x
  3. Step 3: Cross multiply
    78,384,749.97x = 108,177,847.52 × 43,108,771.33
  4. Step 4: Simplify right side
    78,384,749.97x = 4,663,414,092,056,259
  5. Step 5: Solve for x
    x = 4,663,414,092,056,259/78,384,749.97
  6. Step 6: Final answer
    x = 59,493,895.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.